3M 318 4001 Ear Plugs, Cone, 31 dB NRR, Gen Purpose, Corded, Reusable, Push In, M Earplug Size, 200 PK 70696836 Straight Claw Hammer Straight Claw Hammer Optional embedded pressure gauge Noise Reduction Rating 31 dB Earplug Color Yellow Reusability Reusable Cord Options Corded Earplug Shape Cone Earplug Material Foam Pairs Per Package 200 Series E A R Push Ins SofTouch Insertion Method Push In Cord Color Blue Band Material Hearing Protection Vinyl Metal Detectable No Cord Material Hearing Protection Vinyl Standards 31 dB CSA Class AL Band Color Hearing Protection Blue Noise Reduction Rating NRR 31 dB Earplug Pair Pack Type Plastic Bag Earplug Packaging Bulk Box Band Material Vinyl Cord Material Vinyl Country of Origin United States Noise Reduction Rating 31 dB